public class Main {
    public static void main(String[] args) {
        Book book = new Book();

        book.setBookInfo("《钢铁是怎样炼成的》", "尼·奥斯特洛夫斯基", "9787115113806");

        System.out.println( "图书名称：" + book.BookName() +
                            ",图书作者：" + book.BookAuthor() +
                            ",图书 ISBN：" + book.ISBN());
    }
}